SMTP Error - Cant send any email

I'm having the same exact error. Were you able to solve this?

"Graham Murton" wrote:

I have a 2 month old wireless network (3 x desktop, 2 x
laptop). Last week we were suddenly unable to send email
from any computer, we received the following errors:

"The TCP/IP connection was unexpectedly terminated by the
server. (Account: account name, POP3 Server: server
name Error Number:0x800ccc0f."

"The connection to the server has failed. Account
account name, server, server name, protocol, port
110, 0x800ccc0E."

We can not send any email. We can still receive email
and access the internet. The rest of the network is
working correctly.

All the computers are running Windows XP pro. They are
linked with a Dell wireless router/ access point which is
wired to an ISDN router, connected to the phone lines.
We have tried Outlook & Outlook express 2000 & XP

I have tried using different email accounts with
different mail servers but have the same problem which
makes me believe the problem lies somewhere on the
network or each computer.

I have tried using the system restore utility to roll
back to a few days before the problem started but this
did not work.

I have stopped Norton antivirus from scanning outgoing
email and have tried removing it completely from one
computer but we still have the same problem.

Nothing has been changed on the network, hardware or
software. The only thing that may have been added is a
Norton virus update.

Any help will be greatly appreciated

Thanks